A working example is at SAQ, Grimeton Radio. RF power is on the order of 200 kW, but the frequency is so low (17.2 kHz, not MHz) as to make it a real catch in North America. From the web site in Sweden:
GRIMETON RADIO/SAQ TRANSMISSION
The annual transmission on "Alexanderson Day" with the Alexanderson alternator on VLF 17.2 kHz will take place Sunday 29th June 2008 at 09:00 UTC (tuning up from after 08:00 UTC) and will be repeated at 13:00 UTC (tuning up from after 12:00 UTC).
The station will be open to visitors.
Amateur Radio Station with special event call "SK6SAQ" will be QRV 09:15 -12:00 UTC on the following frequencies:
- 14.035 kHz CW
- 14.215 kHz SSB
>From 07:00 UTC also on:
- 3.755 kHz SSB.
QSL via SK6DK or direct to address below.
QSL-reports to SAQ and SK6SAQ are kindly received:
- E-mail to: email@example.com
- or fax to: +46-340-674195
- or via: SM bureau
- or direct by mail to: Alexander - Grimeton Veteranradios Vaenner,
SE-430 16 ROLFSTORP
S W E D E N